Dynamic phase-change memory

Abstract

The invention discloses a dynamic phase transition memory. A storage medium of the memory adopts a phase-change material with lower melting point and lower crystallizing temperature; the melting point of the phase-change material is between 200 DEG C and 640 DEG C, and the crystallizing temperature thereof is between 40 DEG C and 120 DEG C. The memory also comprises a regular refreshing module used for carrying out data refreshing for a memory unit storing high resistance condition regularly, and resetting the memory unit storing lower resistance to the memory unit storing the high resistancecondition. The memory carries out programming to a component with lower power consumption. The dynamic phase transition memory provided by the invention causes the dynamic random memory component to greatly reduce the number of times of needed refreshing, and has lower power consumption compared with the traditional PCRAM; simultaneously as the small signal is adopted to carry out programming, the fatigue character of the dynamic phase transition memory is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of semiconductor storage and relates to a storage, in particular to a low-power dynamic phase-change storage. Background technique [0002] Semiconductor memory is the foundation of information technology and has a market worth hundreds of billions of dollars worldwide. As the most promising candidate for the next-generation general-purpose non-volatile semiconductor memory, phase-change memory (PCRAM) has received extensive attention, and it will soon partially replace flash memory (Flash), thus becoming one of the most important semiconductor memories. [0003] However, the disadvantage of PCRAM is its relatively high programming power consumption, because during the RESET process (transition from low resistance to high resistance, that is, from polycrystalline to amorphous), the memory needs to pass through a large power consumption electrical pulse The phase-change material in the memory is heated above...

AI Technical Summary

Problems solved by technology

[0006] As a model of search engine, Google has created the miracle of Internet technology. In these similar search engines, the search of data is mainly to read the database. During the search process, the computer requires a lot of power consumption to generate huge electricity bills The expenditure has become one of the most important costs for search engine companies, and most of these power consumption comes from the work of memory, especially the consumption of DRAM: because there are constantly requests to read database information to complete the search task, and among them , the power consumption required by the continuous refreshing of DRAM occupies most of the total power consumption

Images